From f2413e147654886107094029c3ac41342bfbcdcb Mon Sep 17 00:00:00 2001
From: cel <cel@f/6sQ6d2CMxRUhLpspgGIulDxDCwYD7DzFzPNr7u5AU=.ed25519>
Date: Wed, 15 Mar 2017 13:02:05 -0400
Subject: live-invalidate about cache

---
 lib/app.js | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/lib/app.js b/lib/app.js
index c4683d7..ee2ec39 100644
--- a/lib/app.js
+++ b/lib/app.js
@@ -31,7 +31,8 @@ function App(sbot, config) {
 
   sbot.get = memo({cache: lru(100)}, sbot.get)
   this.getMsg = memo({cache: lru(100)}, getMsgWithValue, sbot)
-  this.getAbout = memo({cache: lru(100)}, getAbout.bind(this), sbot, sbot.id)
+  this.getAbout = memo({cache: this.aboutCache = lru(100)},
+    getAbout.bind(this), sbot, sbot.id)
   this.unboxContent = memo({cache: lru(100)}, sbot.private.unbox)
   this.reverseNameCache = lru(100)
 
@@ -47,6 +48,16 @@ App.prototype.go = function () {
   }).listen(self.port, self.host, function () {
     self.log('Listening on http://' + self.host + ':' + self.port)
   })
+
+  // invalidate cached About info when new About messages come in
+  pull(
+    self.sbot.links({rel: 'about', old: false, values: true}),
+    pull.drain(function (link) {
+      self.aboutCache.remove(link.dest)
+    }, function (err) {
+      if (err) self.error('about:', err)
+    })
+  )
 }
 
 var logPrefix = '[' + pkg.name + ']'
-- 
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